300-620 practice test

1. Question 1 · 1

   Which feature dynamically assigns or modifies the EPG association of virtual machines based on their attributes?

   Choose one answer.

   • vzAny contracts
   • standard contracts
   • application EPGs
   • uSeg EPGs

2. Question 2 · 1

   An engineer must allow multiple external networks to communicate with internal ACI subnets. Which action should the engineer take to assign the prefix to the class ID of the external Endpoint Group?

   Choose one answer.

   • Enable the Export Route Control Subnet for the External Endpoint Group flag.
   • Enable an L3Out with Shared Route Control Subnet.
   • Configure subnets with the External Subnets for External EPG flag enabled.
   • Configure subnets with the Import Route Control Subnet flag enabled.

3. Question 3 · 1

   An engineer must ensure that Cisco ACI flushes the appropriate endpoints when a topology change notification message is received in an MST domain. Which three steps are required to accomplish this goal? (Choose three.)

   Choose all answers that apply.

   • Enable the BPDU interface controls under the spanning tree interface policy.
   • Configure a new STP interface policy.
   • Bind the spanning tree policy to the switch policy group.
   • Associate the STP interface policy to the appropriate interface policy group.
   • Create a new region policy under the spanning tree policy.
   • Map VLAN range to MST instance number.

4. Question 4 · 1

   A Cisco ACI bridge domain and VRF are configured with a default data-plane learning configuration. Which two endpoint attributes are programmed in the leaf switch when receiving traffic? (Choose two.)

   Choose all answers that apply.

   • Remote MAC, IP
   • Remote Subnet
   • Local IP, not MAC
   • Local MAC, IP
   • Local Subnet
   • Remote IP

5. Question 5 · 1

   Refer to the exhibit. An engineer wants to initiate an ICMP ping from Server1 to Server2. The requirement is for the BD1 to enforce ICMP replies that follow the expected path. The packets must be prevented from taking the direct path from Leaf1 to Server1. Which action must be taken on BD1 to meet these requirements?

   Choose one answer.

   

   • Set L2 Unknown Unicast to Flood.
   • Set L2 Unknown Unicast to Hardware Proxy.
   • Disable Unicast Routing.
   • Enable ARP Flooding.

6. Question 6 · 1

   An engineer must configure a group of servers with a contract that uses TCP port 80. The EPG that contains the web servers requires an external Layer 3 cloud to initiate communication. Which action must be taken to meet these requirements?

   Choose one answer.

   • Configure the EPG as a provider and L3 out as consumer of the contract.
   • Configure OSPF to exchange routes between the L3 out and EPG.
   • Configure a taboo contract and apply it to the EPG.
   • Configure the EPG as a consumer and L3 out as a provider of the contract.

7. Question 7 · 1

   The unicast routing feature is enabled on the bridge domain. Which two conditions enable the Cisco ACI leaf to learn a source IP as a local endpoint? (Choose two.)

   Choose all answers that apply.

   • Through Ethernet traffic received in a bridge domain.
   • IP traffic routed through an SVI.
   • Through VXLAN traffic received on the uplink.
   • IP traffic routed through a Layer 3 Out.
   • Through ARP received on an SVI.

8. Question 8 · 1

   When does the Cisco ACI leaf learn a source IP or MAC as a remote endpoint?

   Choose one answer.

   • When VXLAN traffic arrives on a leaf fabric port from the spine and outer source IP is in the Layer 3 Out EPG subnet range.
   • When VXLAN traffic arrives on a leaf fabric port from the spine and outer source IP is in the bridge domain subnets range.
   • When VXLAN traffic arrives on a leaf fabric port from the spine and inner source IP is in the Layer 3 Out EPG subnet range.
   • When VXLAN traffic arrives on a leaf fabric port from the spine and inner source IP is in the bridge domain subnets range.

9. Question 9 · 1

   Refer to the exhibit. An engineer is deploying a Cisco ACI environment but experiences a STP loop between SW1 and SW2. Which configuration step is needed to break the STP loop?

   Choose one answer.

   

   • Configure a Layer 2 external bridged network on the interfaces facing the MST switches.
   • Enable the native VLAN on the interfaces facing the MST switches using static ports in a dedicated EPG.
   • Enable BPDU filter under the STP interface policy on the interfaces facing the MST switches.
   • Configure the STP instance to VLAN mapping under the switch STP policy.

10. Question 10 · 1

    What is MP-BGP used for in Cisco ACI fabric?

    Choose one answer.

    • MP-BGP VPNv4 AF is used as protocol on L3Out between a border leaf and an external router
    • MP-BGP Layer 2 VPN EVPN AF is used to propagate L3Out routes that are received from a border leaf
    • MP-BGP VPNv4 AF is used to propagate L3Out routes that are received from a border leaf to the fabric
    • MP-BGP VPNv4 AF is used between spines in an ACI Multi-Pod fabric to propagate the endpoint

11. Question 11 · 1

    Which feature allows firewall ACLs to be configured automatically when new endpoints are attached to an EPG?

    Choose one answer.

    • ARP gleaning
    • dynamic endpoint attach
    • hardware proxy
    • network-stitching

12. Question 12 · 1

    What are two descriptions of ACI Multi-Site? (Choose two.)

    Choose all answers that apply.

    • Routers in the Inter-Site network must run OSPF, DHCP relay, and MP-BGP
    • ACI Multi-Site is a solution that allows one APIC cluster to manage multiple ACI sites
    • The Multi-Site orchestrator must be directly attached to one ACI leaf
    • ACI Multi-Site is a solution that supports a dedicated APIC cluster per site
    • The Inter-Site network routers should run OSPF to establish peering with the spines

13. Question 13 · 1

    DRAG DROP - An engineer must configure VMM domain integration on a Cisco UCS B-Series server that is connected to a Cisco ACI fabric. Drag and drop the products used to create VMM domain from the bottom into the sequence in which they should be implemented at the top. Products are used more than once.

    Arrange the options in the correct order.

    

    • APIC
    • APIC
    • APIC
    • vCenter
    • UCS Manager

14. Question 14 · 1

    The company ESXi infrastructure is hosted on the Cisco UCS-B Blade Servers. The company decided to take advantage of ACI VMM integration to enable consistent enforcement of policies across virtual and physical workloads. The requirement is to prevent the packet loss between the distributed virtual switch and the ACI fabric. Which setting must be implemented on a vSwitch policy to accomplish this goal?

    Choose one answer.

    • Static Channel
    • MAC Pinning
    • LACP
    • LLDP

15. Question 15 · 1

    An engineer is configuring ACI VMM domain integration with Cisco UCS-B Series. Which type of port channel policy must be configured in the vSwitch policy?

    Choose one answer.

    • LACP Active
    • MAC Pinning
    • LACP Passive
    • MAC Pinning-Physical-NIC-load

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